Pile fabric



G. KOCH. P|LE FABRIC? PPLICATION FILED JAN. 2l 1919.

'Patented inn 8, v1920.

narran sraras Parana ortica- GEORGE KOCH, OF PATERSON, NEW JERSEY, ASSIGNOR T0 ERNEST CADGENE AND OLAV BERG, `BOTH OF PATERSON, NEW JERSEY. l

PILE FABRIC.

Specification of Letters Patent. Patentd June 8,1920.

rApplication fiied'January 21, i919. serial No. 272,344.

ing through the portions of the rows of' pile'loops which project from the grOllIld, the filling length represented by each such shot andone of the filling lengths inthe ground being continuations of each other. Figure l shows in longitudinal section the improved pile fabric; and

Figs. 2 and 3 illustrate also in longitudinal section how the pile fabric shown in Fig. l may be woven.

The fabric is composed of .warp threads a a (those designated a being ,utilized toA form the pile) and lengths or shots of weft or filling. One method of forming the fab- 4ric is shown in Figs. 2 and 3, which illustrate the forming of two fabrics face to face at once, with separate warps a a and filling b and by the use of two weft carriers, and also by the use of attenuated supports n which are suitably secured at their rear ends but have their forward ends free, and

which are arranged in a series which eX- tends transversely of the two warps and be- 'tween' them and the paths of movement of the two weft carriers. The said supports are secured at their rear endsand have their forward ends free so that as the fabrics are formed and move'forward'they will clear the supports, as will appear. The ground for each fabric may be woven in anyway so as to form crossings of the warp threads with the lengths of filling I) between such crossings. From time to time, as the weaving proceeds and as to each fabric, the pile warp threads a are made to form sheds with the series of supports n, through which shed the 4relatively opposite weft carrier is shot, and when the pile warp threads a are then returned past said vsupports to be again continued in the weaving o`f the ground the length of weft or filling b which was passed through said shed is left supported by said supports and so forms a row of pile loops C, the supportingkof said length of filling I) by the supports n continuing until in the advance of the fabric as the weavingproneeds said length of filling clears the free ends of said supports.v To avoid the` pile rows coupling the two fabrics together, the

pile shed forming operations, one for each.

fabric, donot occur at the same time, but

alternately, so as to avoid the resultant rows of pile loops both receiving the same'shots 5' of filling; and when the pile shed for either fabric-' isformed all the warp threads for the other fabric are withdrawn from between the path of their corresponding weft carrier and the plane of the supports n,-so as to avoid the resultant row of pile loops being connected at `their'free ends or sum.- mits to the latter fabric.v .In-the Aspec'fic form of fabricv resulting from the particu ar method of weaving' herein assumed each fabric has two filling lengths in each of its rows of loops, one being delivered by the "same weft carrier that introduces filling lengths into the ground of that fabric and the other being delivered from the carrier that delivers filling lengths into the ground and rows of pile loops of the other fabric.'

Fabrics woven as in Figs. 2 and 3, though not interconnected as to their pile loops, will be interconnected at their edges, aswill be apparent where those of the portions of filling marked m in Fig. 2 (represented by arrow's to indicate the general course ofthe filling at the near edge of the fabric) run .from the ground of one'fabric to the pile iloop's'of the other, and to separate the fabrics vit will obviously only be necessary to sever at some point the connections thus developed.

It will be noted that each filling length in ,a row. of pile loops and another filling length (to wit, in the ground) are continuations of each other and that'they will further be left as such if only the portions of filling marked which actually form the connections aforesaid are severed,'z'. e., so as to leave intact each group of filling lengths designated l, 2, 3, 4.'

Because by the method of weaving my 'fabric herein set forth the thickness of the filling and in addition of the supports n determines the height of the pile, it will be obvious that in the finished fabric of my invention the space of each loop is somewhat greater than the thickness 'of the fill-- ing extending through it, wherefore the filling is more or less loose or free therein,-

-Were padded they are not stretched or distended and are thus better adapted to resist Ween Having thus fully vdescribed my invention, what I claim and desire to secureby Letters Patent is z A Woven pile fabric including Warp threads and filling lengths forming the gronnd of the fabric and also having some of the iw'arp; threads forming rows of pile loops project- .ing from the ground andfilling lengths eX-- tending through'the projecting portions of l5 the loops of such rows, each filling length ina row of -pile loops and one fof the filling lengths in the ground being continuations o f each other;A

In testimony Whereof'I afzr my signature. 20

GEonGE KocH. 

